import { test } from "node:test";
import assert from "node:assert/strict";
import { hasCoords, resolveAssetLocation } from "./plant-map";

const headquarters = { latitude: -26.10161543177211, longitude: 28.34872485354214 };
const sites = [
  { id: "cedar", name: "Cedar Gate", latitude: -25.761766, longitude: 28.33506 },
  { id: "hills", name: "The Hills", latitude: -25.8481, longitude: 28.35 },
  { id: "west", name: "West Park", latitude: 0, longitude: 0 },
];

test("assigned vehicles leave the headquarters pin for their saved site", () => {
  assert.deepEqual(resolveAssetLocation({ ...headquarters, site: "cedar" }, sites), {
    latitude: -25.761766, longitude: 28.33506, source: "site", siteName: "Cedar Gate",
  });
});

test("reassigning and editing site coordinates changes the plotted location", () => {
  const asset = { ...headquarters, site: "hills" };
  assert.equal(resolveAssetLocation(asset, sites).latitude, -25.8481);
  assert.equal(resolveAssetLocation(asset, sites.map(s => s.id === "hills" ? { ...s, latitude: -25.85 } : s)).latitude, -25.85);
});

test("an assigned site without a pin does not misrepresent the vehicle at headquarters", () => {
  for (const site of ["west", "deleted-site"]) {
    const location = resolveAssetLocation({ ...headquarters, site }, sites);
    assert.equal(hasCoords(location), false);
    assert.equal(location.source, "missing-site");
  }
});

test("removing an assignment restores the vehicle's own saved location", () => {
  assert.equal(resolveAssetLocation({ ...headquarters, site: "" }, sites).source, "head-office");
  assert.deepEqual(resolveAssetLocation({ latitude: -26.2, longitude: 28.1, site: "" }, sites), {
    latitude: -26.2, longitude: 28.1, source: "manual", siteName: null,
  });
});

test("cleared coordinates remain unlocated", () => {
  const location = resolveAssetLocation({ latitude: null, longitude: null, site: "" }, sites);
  assert.equal(location.source, "unlocated");
  assert.equal(hasCoords(location), false);
});

test("invalid or incomplete coordinate pairs are never plotted", () => {
  for (const pair of [
    { latitude: null, longitude: 28 }, { latitude: 0, longitude: 0 },
    { latitude: NaN, longitude: 28 }, { latitude: -26, longitude: Infinity },
    { latitude: -91, longitude: 28 }, { latitude: -26, longitude: 181 },
  ]) assert.equal(hasCoords(pair), false);
  assert.equal(hasCoords({ latitude: 0, longitude: 28 }), true);
});